问题描述
我一直在尝试使用C#通过MS Graph API在Microsoft Teams中发布图像以及消息,但是无法这样做。
下面是我尝试过的代码:
_document.js
正在上传图片,但未显示任何内容,即图片已损坏/损坏,如下所示:
我什至尝试使用以下代码将图像添加到已发送的消息中,但会引发“未知错误”异常。
getinitialProps
我可以使用下面的URL和有效负载,使用MS Graph资源管理器中的Post HTTP方法成功地将同一图像和文本一起发布。
string userName = ConfigurationManager.AppSettings["UserName"];
string password = ConfigurationManager.AppSettings["Password"];
System.Security.securestring passWordsecurestring = new System.Security.securestring();
foreach (char c in password.tochararray()) passWordsecurestring.AppendChar(c);
var clientId = "xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx";
var tenantId = "xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx";
string[] scopes = { "ChannelMessage.Send","Group.ReadWrite.All","User.Read" };
IPublicclientApplication publicclientApplication = PublicclientApplicationBuilder
.Create(clientId)
.WithTenantId(tenantId)
.Build();
//creating the graph user context.
UsernamePasswordProvider authProvider = new UsernamePasswordProvider(publicclientApplication,scopes);
var chatMessage = new ChatMessage
{
Subject = null,Body = new ItemBody
{
ContentType = BodyType.Html,Content = "Hello world </br><div><div>\n<div><span><img height=\"297\" src=\"../hostedContents/1/$value\" width=\"297\" style=\"vertical-align:bottom; width:297px; height:297px\"></span>\n\n</div>\n\n\n</div>\n</div>"
},};
ChatMessageHostedContent chatMessageHostedContent = new ChatMessageHostedContent
{
ContentBytes = Encoding.ASCII.GetBytes("iVBORw0KGgoAAAANSUhEUgAAASkA..."),ContentType = "image/png",AdditionalData = new Dictionary<string,object>()
{
{"@microsoft.graph.temporaryId","1"}
}
};
IChatMessageHostedContentsCollectionPage chatMessageHostedContentsCollectionPage = new ChatMessageHostedContentsCollectionPage();
chatMessageHostedContentsCollectionPage.Add(chatMessageHostedContent);
if (chatMessageHostedContentsCollectionPage.Count > 0)
chatMessage.HostedContents = chatMessageHostedContentsCollectionPage;
ChatMessage sentMessage = await graphClient.Teams["{id}"].Channels["{id}"].Messages
.Request()
.AddAsync(chatMessage);
await graphClient.Teams["{id}"].Channels["{id}"].Messages[sentMessage.Id].HostedContents
.Request()
.AddAsync(chatMessageHostedContent);
有人可以建议代码中有什么问题吗?
解决方法
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